Hey guys. I've been reading a LOT of threads on here, and so far have been VERY helpful. Here's my situation...
I have a National Coal Boiler...It's old...Really old. It's in an insulated building outside my house, maybe 50 to 75 feet from my house. It has copper pipe run underground to the house, where it hits a heat exchanger on top of my oil furnace. An aquastat tells the blower when to kick ON...I have it set at 100*. I have to "fix" my fire every two to three hours to keep everything in line. Any time after three hours, I'm looking at a LONG time spent bringing the water back up to temp. The boiler itself: Ashpit door, feed door, two flew doors?, and a manual chimney draft control. I can't seem to keep the fire going right. The coal I use, and I think this is 90% of my problem: A 50/50 "mix" of nut and soft coal. Most of the threads I've seen deal with newer style boilers, and wasn't sure if anyone had dealt with an older boiler like this or not. I can take pictures of this beast if needed. Oh, and by the way, I've never had to build coal fires before...So, yes, I'm sure that's part of my problem too
Thanks for any and all help, and hopefully, I can get to be as good as most of you, and offer my help as well.